| 摘要 |
<p>A ram air inflated soft kite (spanwise section depicted) has upper (30) and lower (31) skins joined at sides (32, 33) and trailing edge (not shown). The leading edge (not shown) has openings allowing ram air-inflation. Skins (30, 31) are connected inward of their edges by links (34) consisting of chordwise extending ribs or cords spaced spanwise and chordwise. Curvature of the kite is produced by the shape of links (34) or by altering their spacing, eg closer, in the spanwise direction, on upper skin (30) than on lower skin (31) so that wingtips (37, 38) curve upwards, preferably at 15°, to form a dihedral. Yaw and edging type instability in higher aspect ratio kites may be controlled by varying the depth of the leading edge of the kite at wing tips (37, 38) relative to the depth at the centre of the wingspan.</p> |
